The NT24SP furnace parts reference divides the equipment into four illustrated areas. Locate cabinet hardware first, then the electrode and chamber, gas and burner items, and finally the blower assembly.
Select a linked manufacturer number for product details and availability. Check the furnace model, serial-number range and any replacement notes before ordering.
1. Cabinet, ducts and wiring
| Reference | Manufacturer part number | Quantity | Component description |
|---|---|---|---|
| 1 | 100962 | 1 | CABINET ASSY USE 101874 |
| 1 | 101874 | 1 | CABINET ASM COMPLETE |
| 2 | 121662 | 1 | FASTNER TINNERMAN USE 122060 |
| 3 | 62164 | 1 | BOTTOM DUCT GASKET |
| 4 | 121227 | 1 | SCREW,10-24 X 1/2 |
| 5 | 101875DG | 1 | CABINET FRONT |
| 6 | 50715 | 1 | DUCT COLLAR, 4 IN. |
| 7 | 161154 | 1 | THERMOSTAT, WALL (WHITE) |
| 8 | 520322 | 1 | POWER SUPPLY HARNESS |
| NS | 520323 | 1 | 520323 POWER SUPPLY CNCT USE 232699 |
| NS | 232699 | 1 | WIRE HARNESS, INTERNAL |
2. Electrodes, chamber and exhaust
| Reference | Manufacturer part number | Quantity | Component description |
|---|---|---|---|
| NS | 231202 | 1 | TIME DELAY RELAY USE 521069 |
| NS | 521069 | 1 | TIME DELAY RELAY |
| NS | 520797 | 1 | GASKET KIT |
| 9 | 121407 | 1 | SCREW 8-32 X 3/8 HEX BK |
| 10 | 231933 | 1 | ELECTRODE - Above S# 920500001 |
| 10 | 525029 | 1 | SERVICE KIT, ELECTRODE |
| 10 | 230956 | 1 | ELECTRODE 3 PRONG - Below S# 920500001 |
| 10 | 525019 | 1 | SERVICE KIT, ELECTRODE - Below S# 920500001 |
| 10 | 231261 | 1 | ELECTRODE WIRE |
| 11 | 120717 | 1 | NUT, HEX # 10-24 KEPS |
| 12 | 30764 | 1 | BURNER ACCESS DOOR |
| 13 | 71076 | 1 | BURNER/ELECTRODE GASKET SET USE 72103 |
| 13 | 72103 | 1 | GASKET KIT, BURNER /ELECTRODE |
| 13 | 525011 | 1 | SERVICE KIT, GASKETS BURNER / ELECTRODE |
| 15 | 121388 | 1 | SCREW, #10 X 1/2 |
| 18 | 71076 | 1 | BURNER/ELECTRODE GASKET SET USE 72103 |
| 18 | 72103 | 1 | GASKET KIT, BURNER /ELECTRODE |
| 18 | 525011 | 1 | SERVICE KIT, GASKETS BURNER / ELECTRODE |
| 19 | 20922 | 1 | CHAMBER, COMBUSTION |
| 20 | 121252 | 1 | SCREW 10 X 3/8 PH PH |
| 21 | 231626 | 1 | LIMIT SWITCH, 225 DEGREE |
| 22 | 121252 | 1 | SCREW 10 X 3/8 PH PH |
| 23 | 120158 | 1 | SCREW, #8 X 3/8 |
| 24 | 70362 | 1 | BUSHING, SNAP |
| 25 | 121252 | 1 | SCREW 10 X 3/8 PH PH |
| 27 | 230714 | 1 | SPLICER |
| 28 | 121244 | 1 | SCREW, #6 X 1/4IN |
| 29 | 120158 | 1 | SCREW, #8 X 3/8 |
| 30 | 230218 | 1 | BUSHING SNAP 7/8 IN |
| 31 | 62135 | 1 | BRACKET, POWER SUPPLY |
| 32 | 121252 | 1 | SCREW 10 X 3/8 PH PH |
| 35 | 520820 | 1 | MODULE BOARD, WAS SUPERCEEDED USE 521099 |
| 35 | 521099 | 1 | IGNITION CONTROL MODULE |
| 36 | 121357 | 1 | SCREW 6 X 5/8 PH PH |
| 38 | 70807 | 1 | INSULATOR, MODULE BOARD |
| 39 | 90301 | 1 | PANEL, BOARD MOUNTING |
| 42 | 260542 | 1 | VENT CAP USE 260573 |
| 42 | 260573 | 1 | VENT CAP |
| 43 | 50906 | 1 | SUBURBAN INTAKE TUBE 3 IN |
| 45 | 121853 | 1 | SCREW, #10 X 3/4 |
| 46 | 121711 | 1 | SCREW #8X3.25 PH PH 410SS |
3. Gas system and burner
| Reference | Manufacturer part number | Quantity | Component description |
|---|---|---|---|
| 47 | 121459 | 1 | SCREW,10-24 X 1/2 WHIZ LOCK |
| 48 | 10701 | 1 | BURNER ASSY |
| 49 | 180215 | 1 | ORIFICE, #54 |
| 50 | 70408 | 1 | GASKET, MANIFOLD PIPE |
| 51 | 121388 | 1 | SCREW, #10 X 1/2 |
| 52 | 170757 | 1 | MANIFOLD ASM |
| 53 | 161123 | 1 | GAS VALVE 3/8 X 1/8 |
| 54 | 170858 | 1 | PIPE GAS INLET |
| 56 | 70432 | 1 | GASKET, GAS INLET |
| 57 | 170082 | 1 | ELBOW 90 DEG X 3/8 NPT |
| 58 | 70534 | 1 | GASKET DISC COVER |
| 59 | 62408 | 1 | DISC COVER, GAS INLET |
| 60 | 170374 | 1 | GAS FITTING, 90° ELBOW |
| 60 | 525025 | 1 | SERVICE KIT, FITTING BRASS 3/8 90 DEG ELBOW |
4. Blower, motor and air intake
| Reference | Manufacturer part number | Quantity | Component description |
|---|---|---|---|
| 61 | 350113 | 1 | WHEEL, BLOWER METAL |
| 62 | 121252 | 1 | SCREW 10 X 3/8 PH PH |
| 63 | 390283 | 1 | HOUSING, BLOWER |
| 64 | 121227 | 1 | SCREW,10-24 X 1/2 |
| 65 | 230510 | 1 | MICRO SWITCH |
| 66 | 121247 | 1 | SCREW, 2-56 X 5/8 HEX |
| 68 | 121661 | 1 | FASTENER TINNERMAN #2-56 |
| 69 | 121388 | 1 | SCREW, #10 X 1/2 |
| 70 | 62138 | 1 | BRACKET MOTOR MOUNTING |
| 71 | 120717 | 1 | NUT, HEX # 10-24 KEPS |
| 72 | 70385 | 1 | GASKET CROSSOVER TUBE |
| 73 | 50751 | 1 | TUBE, CROSSOVER |
| 74 | 121388 | 1 | SCREW, #10 X 1/2 |
| 75 | 231206 | 1 | MOTOR |
| 76 | 70384 | 1 | GASKET, MOTOR MOUNT |
| 77 | 390179 | 1 | HOUSING COMBUSTION AIR ASSY |
| 78 | 121436 | 1 | SCREW #10-16 X 1/2 |
| 79 | 350110 | 1 | WHEEL COMBUSTION AIR |
| 80 | 121436 | 1 | SCREW #10-16 X 1/2 |
| 81 | 70386 | 1 | GASKET, COMBUSTION AIR |
| 82 | 390424 | 1 | HOUSING, COMBUSTION AIR (OUTSIDE) |
| 83 | 121712 | 1 | BOLT, TINNERMAN |
Replacement parts shown in the diagrams
The products pictured below have manufacturer numbers linked in the reference tables above. Confirm the furnace model, serial number and production revision before ordering. See individual listings for current availability.
Diagram ref 7 · MPN 161154
Suburban 161154 White Heat-Only Mechanical RV Furnace Thermostat
View product and availability
Diagram ref 8 · MPN 520322
Suburban 520322 Furnace Power Supply Wiring Harness, With 3-Pin Female Connector
View product and availability
Diagram ref 10 · MPN 525019
Suburban 525019 Igniter Electrode | P-30S/P-40, Early NT
View product and availability
Diagram ref 10 · MPN 231261
Suburban 231261 22-Inch Electrode Wire for NT/P Furnaces
View product and availability
Diagram ref 71 · MPN 120717
Suburban 120717 #10-24 Plastic Hex Replacement Nut
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Diagram ref 18 · MPN 525011
Suburban 525011 Furnace Burner & Electrode Gasket Kit | NT/P
View product and availability
Diagram ref 35 · MPN 521099
Suburban 521099 12V Furnace Fan-Control Ignition Module
View product and availability
Diagram ref 42 · MPN 260573
Suburban 260573 Furnace Exhaust Vent NT-24SP, NT-30SP & NT-34SP
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Diagram ref 53 · MPN 161123
Suburban 161123 12V Gas Valve | Selected NT/VT Furnaces
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